What does the GVW on a truck mean If you had a triaxle dump truck with a GVW of 60000 does that mean your truck can weight up to that much what if you decided to pull a trailer that weighed 20000?

GVW is gross vehicle weight which is different than GCWR (gross combination weight rating). Pulling a trailer weighing 10 tons should not cause you any problems. However I am assuming you have your dump tagged at a little less than 55,000 to avoid paying heavy use tax. Even if this is not the case and you have tagged it for a heaver weight be aware that pulling that trailer while dump and trailer are loaded may put yousignificantly over your tagged weight. Just watch your gross weight or you can re-tag your dump for 80,000. When GCWR is not available on the power unit DOT will add the GVW for the dump and the trailer to get a GCW (gross combination weight).